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Back of the Box Builds

Back of the Box Builds

LEGO Alternate Builds!

  • SETS
    • Adventurers
    • Aquazone
    • Belville
    • BATMAN™
    • BIONICLE
    • Building Set with People
    • Castle
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    • Harry Potter
    • Holiday and Event
    • LEGOLAND
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  • USEFUL LINKS
    • Submit Instructions!
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    • How BOTBB was Built
  • THIS IS AN INDEPENDENT SITE NOT AUTHORIZED OR SPONSORED BY THE LEGO GROUP

Jens Nygaard Knudsen

Classic Space Classic Space Sets Different Box Versions Different Set Numbers Jens Nygaard Knudsen LL Link Medium Builds Official Sets Space 

924 (487): Space Cruiser

January 25, 2022October 17, 2024 Master Builder 8147 Views

Year Released: 1979Designer: Jens Nygaard KnudsenBricklinkInstructions BOX NOTE – This set has a different bottom with alternates on the rest of

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Classic Space Classic Space Sets Jens Nygaard Knudsen Medium Builds Official Sets Space 

920 (483): Alpha-1 Rocket Base

February 2, 2021July 31, 2023 Master Builder 8930 Views

Year Released: 1979Designer: Jens Nygaard KnudsenBricklinkInstructions

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Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds Space 

894: Mobile Ground Tracking Station

January 12, 2021July 29, 2023 Master Builder 5822 Views

Year Released: 1979Designer: Jens Nygaard KnudsenBricklinkInstructions

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ABCs Classic Space Classic Space Sets Different Box Versions Different Set Numbers Jens Nygaard Knudsen Large Builds LL Link Official Sets Space 

928 (497): Galaxy Explorer

November 24, 2020August 15, 2024 Master Builder 13110 Views

Year Released: 1979Designer: Jens Nygaard KnudsenBricklinkInstructions BOX NOTE – This set has a different bottom with alternates on the rest of

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Box Plus Classic Space Classic Space Sets Jens Nygaard Knudsen LL Link Official Sets Playscape/Play Stage Box Small Builds Space 

918: Space Transport

April 27, 2020January 6, 2026 Master Builder 8498 Views

Year Released: 1979Designer: Jens Nygaard KnudsenBricklinkInstructions *LL Link: 6482: Rescue Helicopter, 924 (487): Space Cruiser, 928 (497): Galaxy Explorer Playscape/Play Stage Box

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Classic Space Classic Space Sets Jens Nygaard Knudsen Medium Builds Official Sets Space 

926 (493): Space Command Center

October 22, 2019July 31, 2023 Master Builder 8362 Views

Year Released: 1979Designer: Jens Nygaard KnudsenBricklinkInstructions

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Classic Space Classic Space Sets Jens Nygaard Knudsen Official Sets Small Builds 

897: Mobile Missile Command

September 14, 2019July 31, 2023 Master Builder 6940 Views

Year Released: 1985Designer: Jens Nygaard KnudsenBricklinkInstructions

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EXPLORE MORE OFFICIAL SETS

6854: Alien Fossilizer
ABCs Exploriens Exploriens Sets Official Sets Small Builds Space 

6854: Alien Fossilizer

July 15, 2022March 22, 2025 Master Builder

Year Released: 1996BricklinkInstructions *Alternate Build Connection: Space Walker

8044: Universal Pneumatic Set
Medium Builds Official Sets Technic Technic Sets 

8044: Universal Pneumatic Set

August 23, 2024August 23, 2024 Master Builder
4561: Railway Express with Transformer and Speed Regulator
9V Extra Large Builds Official Sets Town Train Train Sets 

4561: Railway Express with Transformer and Speed Regulator

January 5, 2026January 5, 2026 Master Builder
375-2 (6075-2): Castle
ABCs Castle Castle Sets Classic Castle Daniel August Krentz Different Set Numbers Duplicate Set Number Extra Large Builds Official Sets 

375-2 (6075-2): Castle

November 8, 2019September 5, 2025 Master Builder
6861: Blacktron Super Model
Blacktron II Blacktron II Alternate Builds Blacktron II Sets Jørn Thomsen Large Builds Official Sets Space Super Model 

6861: Blacktron Super Model

July 29, 2023July 29, 2023 Master Builder
6396: International Jetport
Airport Classic Town Extra Large Builds Official Sets Town Town Sets 

6396: International Jetport

July 14, 2021July 14, 2021 Master Builder
6405: Sunset Stables
Medium Builds Official Sets Paradisa Town Town Sets 

6405: Sunset Stables

September 15, 2022September 15, 2022 Master Builder
358: Rocket Base
LEGOLAND Medium Builds Official Sets Space 

358: Rocket Base

March 5, 2026March 5, 2026 Master Builder
1877: Crusader’s Cart
Bonus/Value Pack Sets Castle Castle Sets Forestmen Official Sets Small Builds 

1877: Crusader’s Cart

October 11, 2021September 24, 2024 Master Builder
6125: Sea Sprint 9
Aquanauts Aquazone Aquazone Sets Jørn Thomsen Official Sets Very Small Builds 

6125: Sea Sprint 9

April 9, 2020July 29, 2023 Master Builder
6748: Boulder Cliff Canyon
Indians Jørn Thomsen Large Builds Official Sets Western Western Sets 

6748: Boulder Cliff Canyon

April 16, 2021July 29, 2023 Master Builder
6263: Imperial Outpost
Imperial Guards Medium Builds Official Sets Pirates Pirates I Pirates Sets 

6263: Imperial Outpost

February 21, 2025February 21, 2025 Master Builder
1593: Super Model
Classic Space Classic Space Sets Large Builds Official Sets Space Super Model 

1593: Super Model

February 3, 2021March 18, 2024 Master Builder
6351: Surf N’ Sail Camper
Classic Town Medium Builds Official Sets Recreation Town Town Sets 

6351: Surf N’ Sail Camper

July 14, 2021July 14, 2021 Master Builder
2153: Robo Stalker
Box Story Large Builds Official Sets Robo Force Robo Force Sets Space 

2153: Robo Stalker

June 15, 2023April 3, 2024 Master Builder
6258: Smuggler’s Shanty
Official Sets Pirates Pirates I Pirates Sets Small Builds 

6258: Smuggler’s Shanty

July 8, 2022July 8, 2022 Master Builder

BOXES

INSTRUCTIONS

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MINIFIGS

About This Site

Logo
There were once pictures of additional LEGO® builds on the back of set boxes. Written on the boxes was typically something about the endless building possibilities, "Build any of these exciting models with this set!" There were no instructions for these alternate builds, until now.

Sets

  • Adventurers
  • Aquazone
  • BATMAN
  • Bionicle
  • Belville
  • Building Set with People
  • Castle
  • Duplo
  • Fabuland
  • Harry Potter
  • Holiday and Event
  • LEGOLAND
  • Model Team
  • Pirates
  • Space
  • Star Wars
  • Technic
  • Train
  • Town
  • Universal Building Set
  • Western
  • More Sets
  • Misc

Useful Links

  • Submit Instructions!
  • New Instructions
  • New Official Sets
  • New Alternate Builds
  • Minifigs
  • Very Small Builds (<35 pcs)
  • Small Builds (<100 pcs)
  • Medium Builds (<200 pcs)
  • Large Builds (<400 pcs)
  • Extra Large Builds (>400 pcs)
  • How BOTBB was Built

In Honor of 1526

The classic space set that never was.

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